| SHANG Guo-feng,ZHOU Xian-tao,LIU Hai-feng,PAN Jia-zhen.The Microscale Study on the Heat Transfer Area of the Metal Surface by Chemical Corrosion[J],39(1):56-58 |
| The Microscale Study on the Heat Transfer Area of the Metal Surface by Chemical Corrosion |
| Received:September 09, 2009 Revised:February 10, 2010 |
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| DOI： |
| KeyWord:Microscale Chemical corrosion Fractal dimension |
| Author | Institution |
| SHANG Guo-feng |
East China University of Science and Technology, Shanghai , China |
| ZHOU Xian-tao |
East China University of Science and Technology, Shanghai , China |
| LIU Hai-feng |
East China University of Science and Technology, Shanghai , China |
| PAN Jia-zhen |
East China University of Science and Technology, Shanghai , China |
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| Abstract: |
| In order to obtain metal heat transfer surface of the multi-scale effects to enhance the heat transfer surface area, with aluminum as the research object that was corroded by chemical etching treatment.By orthogonal test design, obtained the best ratio of caustic and corrosive conditions; Through the initial characterization of the surface corrosion, used the method of the fractal geometry of the box counting, obtained the fractal dimension; Used the relevant expressions between the correlation coefficient of surface roughness and the fractal dimension, obtained the surface roughness of the correlation coefficient of the corroded surface; Used the optical electron microscope to observe the surface of the corrosion, got the relationship between the breadth and the depth of the corrosion pits. |
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